ui-shared.c

   1 /* ui-shared.c: common web output functions
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10
  11 const char cgit_doctype[] =
  12 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
  13 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
  14
  15 static char *http_date(time_t t)
  16 {
  17         static char day[][4] =
  18                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
  19         static char month[][4] =
  20                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
  21                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
  22         struct tm *tm = gmtime(&t);
  23         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
  24                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
  25                    tm->tm_hour, tm->tm_min, tm->tm_sec);
  26 }
  27
  28 static long ttl_seconds(long ttl)
  29 {
  30         if (ttl<0)
  31                 return 60 * 60 * 24 * 365;
  32         else
  33                 return ttl * 60;
  34 }
  35
  36 void cgit_print_error(char *msg)
  37 {
  38         html("<div class='error'>");
  39         html_txt(msg);
  40         html("</div>\n");
  41 }
  42
  43 char *cgit_rooturl()
  44 {
  45         if (cgit_virtual_root)
  46                 return fmt("%s/", cgit_virtual_root);
  47         else
  48                 return cgit_script_name;
  49 }
  50
  51 char *cgit_repourl(const char *reponame)
  52 {
  53         if (cgit_virtual_root) {
  54                 return fmt("%s/%s/", cgit_virtual_root, reponame);
  55         } else {
  56                 return fmt("?r=%s", reponame);
  57         }
  58 }
  59
  60 char *cgit_fileurl(const char *reponame, const char *pagename,
  61                    const char *filename, const char *query)
  62 {
  63         if (cgit_virtual_root) {
  64                 if (query)
  65                         return fmt("%s/%s/%s/%s?%s", cgit_virtual_root, reponame,
  66                                    pagename, filename?filename:"", query);
  67                 else
  68                         return fmt("%s/%s/%s/", cgit_virtual_root, reponame,
  69                                    pagename);
  70         } else {
  71                 if (query)
  72                         return fmt("?r=%s&amp;p=%s&amp;%s", reponame, pagename, query);
  73                 else
  74                         return fmt("?r=%s&amp;p=%s", reponame, pagename);
  75         }
  76 }
  77
  78 char *cgit_pageurl(const char *reponame, const char *pagename,
  79                    const char *query)
  80 {
  81         return cgit_fileurl(reponame,pagename,0,query);
  82 }
  83
  84 const char *cgit_repobasename(const char *reponame)
  85 {
  86         /* I assume we don't need to store more than one repo basename */
  87         static char rvbuf[1024];
  88         int p;
  89         const char *rv;
  90         strncpy(rvbuf,reponame,sizeof(rvbuf));
  91         if(rvbuf[sizeof(rvbuf)-1])
  92                 die("cgit_repobasename: truncated repository name '%s'", reponame);
  93         p = strlen(rvbuf)-1;
  94         /* strip trailing slashes */
  95         while(p && rvbuf[p]=='/') rvbuf[p--]=0;
  96         /* strip trailing .git */
  97         if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
  98                 p -= 3; rvbuf[p--] = 0;
  99         }
 100         /* strip more trailing slashes if any */
 101         while( p && rvbuf[p]=='/') rvbuf[p--]=0;
 102         /* find last slash in the remaining string */
 103         rv = strrchr(rvbuf,'/');
 104         if(rv)
 105                 return ++rv;
 106         return rvbuf;
 107 }
 108
 109 char *cgit_currurl()
 110 {
 111         if (!cgit_virtual_root)
 112                 return cgit_script_name;
 113         else if (cgit_query_page)
 114                 return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
 115         else if (cgit_query_repo)
 116                 return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
 117         else
 118                 return fmt("%s/", cgit_virtual_root);
 119 }
 120
 121 static char *repolink(char *title, char *class, char *page, char *head,
 122                       char *path)
 123 {
 124         char *delim = "?";
 125
 126         html("<a");
 127         if (title) {
 128                 html(" title='");
 129                 html_attr(title);
 130                 html("'");
 131         }
 132         if (class) {
 133                 html(" class='");
 134                 html_attr(class);
 135                 html("'");
 136         }
 137         html(" href='");
 138         if (cgit_virtual_root) {
 139                 html_attr(cgit_virtual_root);
 140                 if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/')
 141                         html("/");
 142                 html_attr(cgit_repo->url);
 143                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 144                         html("/");
 145                 if (page) {
 146                         html(page);
 147                         html("/");
 148                         if (path)
 149                                 html_attr(path);
 150                 }
 151         } else {
 152                 html(cgit_script_name);
 153                 html("?url=");
 154                 html_attr(cgit_repo->url);
 155                 if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/')
 156                         html("/");
 157                 if (page) {
 158                         html(page);
 159                         html("/");
 160                         if (path)
 161                                 html_attr(path);
 162                 }
 163                 delim = "&amp;";
 164         }
 165         if (head && strcmp(head, cgit_repo->defbranch)) {
 166                 html(delim);
 167                 html("h=");
 168                 html_attr(head);
 169                 delim = "&amp;";
 170         }
 171         return fmt("%s", delim);
 172 }
 173
 174 static void reporevlink(char *page, char *name, char *title, char *class,
 175                         char *head, char *rev, char *path)
 176 {
 177         char *delim;
 178
 179         delim = repolink(title, class, page, head, path);
 180         if (rev && strcmp(rev, cgit_query_head)) {
 181                 html(delim);
 182                 html("id=");
 183                 html_attr(rev);
 184         }
 185         html("'>");
 186         html_txt(name);
 187         html("</a>");
 188 }
 189
 190 void cgit_tree_link(char *name, char *title, char *class, char *head,
 191                     char *rev, char *path)
 192 {
 193         reporevlink("tree", name, title, class, head, rev, path);
 194 }
 195
 196 void cgit_log_link(char *name, char *title, char *class, char *head,
 197                    char *rev, char *path, int ofs)
 198 {
 199         char *delim;
 200
 201         delim = repolink(title, class, "log", head, path);
 202         if (rev && strcmp(rev, cgit_query_head)) {
 203                 html(delim);
 204                 html("id=");
 205                 html_attr(rev);
 206                 delim = "&";
 207         }
 208         if (ofs > 0) {
 209                 html(delim);
 210                 html("ofs=");
 211                 htmlf("%d", ofs);
 212         }
 213         html("'>");
 214         html_txt(name);
 215         html("</a>");
 216 }
 217
 218 void cgit_commit_link(char *name, char *title, char *class, char *head,
 219                       char *rev)
 220 {
 221         if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) {
 222                 name[cgit_max_msg_len] = '\0';
 223                 name[cgit_max_msg_len - 1] = '.';
 224                 name[cgit_max_msg_len - 2] = '.';
 225                 name[cgit_max_msg_len - 3] = '.';
 226         }
 227         reporevlink("commit", name, title, class, head, rev, NULL);
 228 }
 229
 230 void cgit_refs_link(char *name, char *title, char *class, char *head,
 231                     char *rev, char *path)
 232 {
 233         reporevlink("refs", name, title, class, head, rev, path);
 234 }
 235
 236 void cgit_snapshot_link(char *name, char *title, char *class, char *head,
 237                         char *rev, char *archivename)
 238 {
 239         reporevlink("snapshot", name, title, class, head, rev, archivename);
 240 }
 241
 242 void cgit_diff_link(char *name, char *title, char *class, char *head,
 243                     char *new_rev, char *old_rev, char *path)
 244 {
 245         char *delim;
 246
 247         delim = repolink(title, class, "diff", head, path);
 248         if (new_rev && strcmp(new_rev, cgit_query_head)) {
 249                 html(delim);
 250                 html("id=");
 251                 html_attr(new_rev);
 252                 delim = "&amp;";
 253         }
 254         if (old_rev) {
 255                 html(delim);
 256                 html("id2=");
 257                 html_attr(old_rev);
 258         }
 259         html("'>");
 260         html_txt(name);
 261         html("</a>");
 262 }
 263
 264 void cgit_object_link(struct object *obj)
 265 {
 266         char *page, *arg, *url;
 267
 268         if (obj->type == OBJ_COMMIT) {
 269                 cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
 270                                  cgit_query_head, sha1_to_hex(obj->sha1));
 271                 return;
 272         } else if (obj->type == OBJ_TREE) {
 273                 page = "tree";
 274                 arg = "id";
 275         } else {
 276                 page = "blob";
 277                 arg = "id";
 278         }
 279
 280         url = cgit_pageurl(cgit_query_repo, page,
 281                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
 282         html_link_open(url, NULL, NULL);
 283         htmlf("%s %s", typename(obj->type),
 284               sha1_to_hex(obj->sha1));
 285         html_link_close();
 286 }
 287
 288 void cgit_print_date(time_t secs, char *format)
 289 {
 290         char buf[64];
 291         struct tm *time;
 292
 293         time = gmtime(&secs);
 294         strftime(buf, sizeof(buf)-1, format, time);
 295         html_txt(buf);
 296 }
 297
 298 void cgit_print_age(time_t t, time_t max_relative, char *format)
 299 {
 300         time_t now, secs;
 301
 302         time(&now);
 303         secs = now - t;
 304
 305         if (secs > max_relative && max_relative >= 0) {
 306                 cgit_print_date(t, format);
 307                 return;
 308         }
 309
 310         if (secs < TM_HOUR * 2) {
 311                 htmlf("<span class='age-mins'>%.0f min.</span>",
 312                       secs * 1.0 / TM_MIN);
 313                 return;
 314         }
 315         if (secs < TM_DAY * 2) {
 316                 htmlf("<span class='age-hours'>%.0f hours</span>",
 317                       secs * 1.0 / TM_HOUR);
 318                 return;
 319         }
 320         if (secs < TM_WEEK * 2) {
 321                 htmlf("<span class='age-days'>%.0f days</span>",
 322                       secs * 1.0 / TM_DAY);
 323                 return;
 324         }
 325         if (secs < TM_MONTH * 2) {
 326                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 327                       secs * 1.0 / TM_WEEK);
 328                 return;
 329         }
 330         if (secs < TM_YEAR * 2) {
 331                 htmlf("<span class='age-months'>%.0f months</span>",
 332                       secs * 1.0 / TM_MONTH);
 333                 return;
 334         }
 335         htmlf("<span class='age-years'>%.0f years</span>",
 336               secs * 1.0 / TM_YEAR);
 337 }
 338
 339 void cgit_print_docstart(char *title, struct cacheitem *item)
 340 {
 341         html("Content-Type: text/html; charset=utf-8\n");
 342         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 343         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 344                                          ttl_seconds(item->ttl)));
 345         html("\n");
 346         html(cgit_doctype);
 347         html("<html>\n");
 348         html("<head>\n");
 349         html("<title>");
 350         html_txt(title);
 351         html("</title>\n");
 352         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 353         html("<link rel='stylesheet' type='text/css' href='");
 354         html_attr(cgit_css);
 355         html("'/>\n");
 356         html("</head>\n");
 357         html("<body>\n");
 358 }
 359
 360 void cgit_print_docend()
 361 {
 362         html("</td></tr></table>");
 363         html("</body>\n</html>\n");
 364 }
 365
 366 void cgit_print_pageheader(char *title, int show_search)
 367 {
 368         html("<table id='layout'>");
 369         html("<tr><td id='header'><a href='");
 370         html_attr(cgit_rooturl());
 371         html("'>");
 372         html_txt(cgit_root_title);
 373         html("</a></td><td id='logo'>");
 374         html("<a href='");
 375         html_attr(cgit_logo_link);
 376         htmlf("'><img src='%s' alt='logo'/></a>", cgit_logo);
 377         html("</td></tr>");
 378         html("<tr><td id='crumb'>");
 379         if (cgit_query_repo) {
 380                 html_txt(cgit_repo->name);
 381                 html(" (");
 382                 html_txt(cgit_query_head);
 383                 html(") : &nbsp;");
 384                 reporevlink(NULL, "summary", NULL, NULL, cgit_query_head,
 385                             NULL, NULL);
 386                 html(" ");
 387                 cgit_log_link("log", NULL, NULL, cgit_query_head,
 388                               cgit_query_sha1, cgit_query_path, 0);
 389                 html(" ");
 390                 cgit_tree_link("tree", NULL, NULL, cgit_query_head,
 391                                cgit_query_sha1, NULL);
 392                 html(" ");
 393                 cgit_commit_link("commit", NULL, NULL, cgit_query_head,
 394                               cgit_query_sha1);
 395                 html(" ");
 396                 cgit_diff_link("diff", NULL, NULL, cgit_query_head,
 397                                cgit_query_sha1, cgit_query_sha2,
 398                                cgit_query_path);
 399         } else {
 400                 html_txt("Index of repositories");
 401         }
 402         html("</td>");
 403         html("<td id='search'>");
 404         if (show_search) {
 405                 html("<form method='get' action='");
 406                 html_attr(cgit_currurl());
 407                 html("'>");
 408                 if (!cgit_virtual_root) {
 409                         if (cgit_query_repo)
 410                                 html_hidden("r", cgit_query_repo);
 411                         if (cgit_query_page)
 412                                 html_hidden("p", cgit_query_page);
 413                 }
 414                 if (cgit_query_head)
 415                         html_hidden("h", cgit_query_head);
 416                 if (cgit_query_sha1)
 417                         html_hidden("id", cgit_query_sha1);
 418                 if (cgit_query_sha2)
 419                         html_hidden("id2", cgit_query_sha2);
 420                 html("<input type='text' name='q' value='");
 421                 html_attr(cgit_query_search);
 422                 html("'/></form>");
 423         }
 424         html("</td></tr>");
 425         html("<tr><td id='content' colspan='2'>");
 426 }
 427
 428 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 429                                struct cacheitem *item)
 430 {
 431         htmlf("Content-Type: %s\n", mimetype);
 432         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 433         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 434         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 435                                          ttl_seconds(item->ttl)));
 436         html("\n");
 437 }
 438
 439 /* vim:set sw=8: */